xref: /reactos/dll/directx/wine/wined3d/view.c (revision b819608e)
1 /*
2  * Copyright 2009, 2011 Henri Verbeet for CodeWeavers
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  *
18  */
19 
20 #include "wined3d_private.h"
21 
22 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
23 
24 ULONG CDECL wined3d_rendertarget_view_incref(struct wined3d_rendertarget_view *view)
25 {
26     ULONG refcount = InterlockedIncrement(&view->refcount);
27 
28     TRACE("%p increasing refcount to %u.\n", view, refcount);
29 
30     return refcount;
31 }
32 
33 ULONG CDECL wined3d_rendertarget_view_decref(struct wined3d_rendertarget_view *view)
34 {
35     ULONG refcount = InterlockedDecrement(&view->refcount);
36 
37     TRACE("%p decreasing refcount to %u.\n", view, refcount);
38 
39     if (!refcount)
40         HeapFree(GetProcessHeap(), 0, view);
41 
42     return refcount;
43 }
44 
45 void * CDECL wined3d_rendertarget_view_get_parent(const struct wined3d_rendertarget_view *view)
46 {
47     TRACE("view %p.\n", view);
48 
49     return view->parent;
50 }
51 
52 struct wined3d_resource * CDECL wined3d_rendertarget_view_get_resource(const struct wined3d_rendertarget_view *view)
53 {
54     TRACE("view %p.\n", view);
55 
56     return view->resource;
57 }
58 
59 static void wined3d_rendertarget_view_init(struct wined3d_rendertarget_view *view,
60         struct wined3d_resource *resource, void *parent)
61 {
62     view->refcount = 1;
63     view->resource = resource;
64     view->parent = parent;
65 }
66 
67 HRESULT CDECL wined3d_rendertarget_view_create(struct wined3d_resource *resource,
68         void *parent, struct wined3d_rendertarget_view **rendertarget_view)
69 {
70     struct wined3d_rendertarget_view *object;
71 
72     TRACE("resource %p, parent %p, rendertarget_view %p.\n",
73             resource, parent, rendertarget_view);
74 
75     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
76     if (!object)
77         return E_OUTOFMEMORY;
78 
79     wined3d_rendertarget_view_init(object, resource, parent);
80 
81     TRACE("Created render target view %p.\n", object);
82     *rendertarget_view = object;
83 
84     return WINED3D_OK;
85 }
86